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2-N,2-N',4-N,4-N',6-N,6-N',8-N,8-N'-octamethyl-1,3,5,7-tetraza-2λ5,4λ5,6λ5,8λ5-tetraphosphacycloocta-1,3,5,7-tetraene-2,2,4,4,6,6,8,8-octamine
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N1,N3,N'3,N5,N7,N'7,9-heptamethyl-2,4,6,8,9-pentaaza-1l5,3l5,5l5,7l5-tetraphosphabicyclo[3.3.1]nona-1,3,5,7-tetraene-1,3,3,5,7,7-hexaamine